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Finding the Fourth Proportional to 40,132.80, 60,220.80 and 34,315.92

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Solution

The fourth proportional to 40,132.80, 60,220.80 and 34,315.92 is: 51,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,132.80 : 60,220.80 = 34,315.92 : x
  2. Step 2: Convert to fraction form
    40,132.80/60,220.80 = 34,315.92/x
  3. Step 3: Cross multiply
    40,132.80x = 60,220.80 × 34,315.92
  4. Step 4: Simplify right side
    40,132.80x = 2,066,532,155.14
  5. Step 5: Solve for x
    x = 2,066,532,155.14/40,132.80
  6. Step 6: Final answer
    x = 51,492.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.